Golden State Warriors' Klay Thompson, right, defends Brooklyn Nets' D'Angelo Russell during the second half of an NBA basketball game Sunday, Oct. 28, 2018, in New York. The Warriors won 120-114.

NEW YORK, NEW YORK - APRIL 18: Caris LeVert #22 and D'Angelo Russell #1 of the Brooklyn Nets react after a basket in the second quarter against the Philadelphia 76ers during game three of Round One of the 2019 NBA Playoffs at Barclays Center on April 18, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Elsa/Getty Images)

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Golden State Warriors' Klay Thompson (11) gets past Brooklyn Nets' D'Angelo Russell (1) in the third period of their NBA game at Oracle Arena in Oakland, Calif., on Thursday, Feb. 22, 2018. (Doug Duran/Bay Area News Group)

Brooklyn Nets guard D'Angelo Russell runs up the court after scoring against the Golden State Warriors during the first half of an NBA basketball game in Oakland, Calif., Tuesday, March 6, 2018. (AP Photo/Jeff Chiu)

Golden State Warriors' Klay Thompson (11) steals a pass intended for Brooklyn Nets' D'Angelo Russell (1) during the second quarter of their NBA game at the Oracle Arena in Oakland, Calif. on Saturday, Nov. 10, 2018. The Golden State Warriors defeated the Brooklyn Nets 116-100. (Jose Carlos Fajardo/Bay Area News Group)

Golden State Warriors' Klay Thompson (11) gets past Brooklyn Nets' D'Angelo Russell (1) in the third period of their NBA game at Oracle Arena in Oakland, Calif., on Tuesday, March 6, 2018.. (Doug Duran/Bay Area News Group)

SACRAMENTO, CALIFORNIA - MARCH 19: D'Angelo Russell #1 of the Brooklyn Nets is congratulated by Treveon Graham #21 after Russell made a shot during their game against the Sacramento Kings at Golden 1 Center on March 19, 2019 in Sacramento, California. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Ezra Shaw/Getty Images)

PHILADELPHIA, PA - APRIL 23: D'Angelo Russell #1 of the Brooklyn Nets passes the ball against Jimmy Butler #23 of the Philadelphia 76ers in Game Five of Round One of the 2019 NBA Playoffs at the Wells Fargo Center on April 23, 2019 in Philadelphia, Pennsylvania. (Photo by Mitchell Leff/Getty Images)

NEW YORK, NEW YORK - APRIL 20: D'Angelo Russell #1 of the Brooklyn Nets celebrates his shot in the first half against the Philadelphia 76ers at Barclays Center on April 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Elsa/Getty Images)

Sunday was a rough day to be a Warriors fan. Hoping for the best, they got, well, not the best.

D’Angelo Russell is hip.

Russell? Sunday morning he was an All-Star on an ascendent Brooklyn Nets team. By sundown he was a Golden State Warrior, moved to make room for the head-spinning influx of Kevin Durant, Kyrie Irving and DeAndre Jordan.

So here is the first of five things Warriors fans need to know about their new shooting guard:

1) According to The Athletic, Russell believed he was about to be acquired by the Minnesota Timberwolves and unite with good friend Karl-Anthony Towns. Per The Athletic’s Jon Krawczynski:

“A lavish presentation was planned (by the Timberwolves), including a helicopter ride over the city of Los Angeles. The plans were in place to make room to unite Russell with Karl-Anthony Towns, the two close friends and top two picks in the 2015 draft teaming up to turn around one of the league’s moribund franchises.”

It was a fluid situation. In the end, Russell landed with the Warriors — a point guard joining point guard supreme Stephen Curry. Not a hellhole to be sure, and it is expected Russell will sign a four-year, $117 contract. But if you happen to see him wandering around Mission Bay, be kind. He’s still shaking off a case of whiplash, NBA free-agent feeding-frenzy style.

2) He was drafted by the Lakers with the second overall pick in the 2015 draft.

Gary Peterson is a sports writer for the Bay Area News Group. His prior assignments included 31 years as a sports columnist, serving as a general assignment news reporter, covering courts and writing a metro column before finding his way back to sports.